On 11 November 1918, Emperor Charles I of Austria relinquished power and, on 12 November, the ethnic German areas of the empire were declared the Republic of German Austria with the intent of unifying with Germany. The Province of German Bohemia in the north and west was the part of the state including most of the ethnic Germans in Bohemia. However, ethnic German areas of southwestern Bohemia known as the Bohemian Forest Region with their center at Prachatice (German: Prachatitz) were added to Upper Austria instead of German Bohemia. However, the area was taken by the Czechoslovak army by the end 1918.